TR 570C over Sangamon River
GoodMcLean County, Illinois · 1.0 MI NW Saybrook · Structure no. 057361400000000
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected March 2024
- Type
- Slab
- Concrete Continuous
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 100
- 2024 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
TR 570C over Sangamon River is a concrete continuous slab carrying TR 570C over Sangamon River in McLean County, Illinois. It was built in 1978, so it is 47 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 17% of them trucks, projected to reach 152 by 2046. The structure is 100 ft (30.5 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was TR 570C over Sangamon River built?
It was built in 1978, making it 47 years old in 2025.
What condition is TR 570C over Sangamon River in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in March 2024.
How much traffic does TR 570C over Sangamon River carry?
About 100 vehicles per day (2024 count), of which roughly 17% are trucks.
How long is TR 570C over Sangamon River?
The structure is 100 ft (30.5 m) long with a longest span of 38 ft (11.6 m) and a deck 26 ft wide.
Who owns TR 570C over Sangamon River?
It is owned by the Town or Township Highway Agency.